What does Pierson mean?
Pierson /pier-son/ [2 sylls.] as a boys' name. Pierson's name origin is Greek, and Pierson means "rock". Pierson is a version, with the suffix -son, of Pierce (English, Greek): variation of Piers from Peter.
How popular is Pierson?
Pierson is an unusual first name for men but a very prominent surname for all people (#1158 out of 150436, Top 1%). (2000 U.S. Census)
Pierce (#470 a year ago) is the only prominent varying form of Pierson (not ranked). Forms like Pears are uncommon. This boy name was at the apex of its popularity in the year 2013 (usage of 0.538%) and is almost as popular today (usage 0.53%, ▼1.5%). Pierce (#470) is the most chic birth name in this list, and there is a rekindling in birth name popularity for this name. Shown below is a comparison of the usage of Pierson and associated names. (Top 1000 Birth Names Statistics, 2014)